Delta DVP-ES2 User Manual download pdf (Page 387)

100

101

3. Instruction Set

3-271

Program Example 2:

Communication between PLC and VFD-B series AC motor drive (RTU Mode, M1143= ON)

MOV D1120H87

M1002

SET M1120

MOV D1129K100

M1127

Receiving

completed

Set communication protocol as 9600, 8, E, 1

Retain communication protocol

Sett receiving timeout as 100ms

Processing received data

Reset M1127

Sending request

The received data

in HEX.

is stored

in D1070~D1085

Set as RTU mode

MODRD K1 H2102

Set communication instruction:

Data address: H2102

ata length: 2 words

evice address: 01

SET

M1143

SET M1122

RST M1127

PLC → VFD-B , PLC transmits: 01 03 2102 0002 6F F7

VFD-B → PLC, PLC receives: 01 03 04 1770 0000 FE 5C

Registers for data to be sent (sending messages)

D1089 low byte 01 H Address of AC motor drive

D1090 low byte 03 H Command code of AC motor drive

D1091 low byte 21 H

D1092 low byte 02 H

Starting data address

D1093 low byte 00 H

D1094 low byte 02 H

Number of data (count by word)

D1095 low byte 6F H CRC CHK Low

D1096 low byte F7 H CRC CHK High

Registers for received data (responding messages)

D1070 low byte 01 H Address of AC motor drive

D1071 low byte 03 H Command code of AC motor drive

D1072 low byte 04 H Number of data (count by byte)

D1073 low byte 17 H

D1074 low byte 70 H

Content of address 2102 H

D1075 low byte 00 H

D1076 low byte 00 H

Content of address 2103 H

1 2 ... 382 383 384 385 386 387 388 389 390 391 392 ... 701 702

Delta DVP-ES2 User Manual Page 387

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